Time-controlled damper.



PATENTED JAN. 29, 1907. W. P. GAWTHORNE & H. M/LUMMIS. I

TIME CONTROLLED DAMPER.

inmouron 'nnnp MAY 29, 1905. mmnwrm 001'. s. 1906.

7H2 NORRIS PETERS cm, wnsnmarou, n. c.

PATENT OFFICE.

UNITED srAgrns WVALTER F. CAWTHORNE AND HENRY M. LUMMIS, OF ELIZABETH,NEW JERSEY, ASSIGNORS TO AUTODRAFT MANUFACTURING COMPANY, A

CORPORATION OF NEW YORK.

Specification of Letters Patent.

Patented Jan. 29, 1907.

Application filed May 29, 1905. Renewed October 5, 1906- Serial No.337,627.

To all whom it may concern.-

Be it known that we, WALTER F. CAW- THORNE and HENRY M. LUMMIs, citizensofthe United States, residing at Elizabeth, in the county of Union andState of New Jersey, have invented a new and useful Time-ControlledDamper-Adjuster, of which the following is a specification.

Our invention relates to-improvements in heater draft regulating oradjusting devices; and the objects of our improvement are, first, toprovide a simple device which will automatically without manualinterference operate to adjust the one or several dampers and draftappliances upon a stove or heater at a predetermined time, and thusadjust the temperature of the place the heater is designed to heatwithout the personal efiort of person; second, to provide a device ofthe above nature which is susceptible of being attached to and suspendedfrom a beam of a cellarceiling or of such other place as desired.

The device consists, essentially, of a base board, (vertical,) analarm-clock, a hammer in the form of an oblong bar, a bearing and springfor said hammer, a spring-catch, a Weight, and a cord or series of cordswith pulleys.

I/Ve attain the objects of our invention by the mechanism illustrated inthe accompanying drawings, in which Figure 1 is a front elevation of theWhole machine, except the cord and pulleys. Fig. 2 is a rear elevationof the whole machine, (cord severed and pulleys omitted.) Fig. 3 is aside elevation of the same, showing the are described by the hammer indescending upon the spring-catch. Fig. 4 is a longitudinal section ofthe spring-catch as inserted in the base, section being at 0c 00 in Fig.2. Fig. 5 is a general view showing one method of attaching the cord tothe heater. This must be varied, however, to meet the requirements ofthe particular heater, and reverse action may be at the same timeobtained by running a cord upward from the floor to the weight, thetension of which may be lessened by the descent of the weight.

Like characters refer to like parts throughout.

In Fig. 1, A is a vertical base-board, being for economy in its lowerhalf somewhat narrower than in its upper half. In the upper part of thisboard is made a circular opening I for the insertion of the clock. theinside of this circular opening are four V-shaped springs F F F F insuch manner that when the clock is inserted they will grip the same andhold it firmly in said opening. On the back of the base-board andextending over the edge toward the center of the opening are three smallplates G, G and G Fig. 2, to stop the said clock from passing throughthe opening and hold the back of the clock flush with the back of thebase-board. On the front of the base-board at the top of the opening isout a groove I, into which fits the bell-post of the clock to preventrotation of the clock while in said opening. B is the alarm-clock, whichmust be of a pattern whose alarm winding-post revolves upon the actingof the alarm mechanism.

In Figs. 2 and 3, C represents the hammer,

Attached to which is pivoted in a bracket D near the mid dle of thebaseboard. At the pivoted end of this hammer there is arranged a springin such manner as to force the downward motion of the hammer. K is aspring-catch receding into the base-board upon pressure from without. Lis a weight having a loop at the top and normally suspended upon saidcatch K. M is a flexible cord by means of which -power is transmitted tothe damper or draft of the heater, which cord is attached to the weight.

In'Fig. 4, K is the catch upon which the weight is suspended, and J isthe head where the impact is received from the hammer. O is a springkeeping the catch normally protrudin P is a circular opening continuedthrougi the base for the reception of the working part of the catch uponcompression.

In Fig. 5, S are the pulleys over which the cord proceeds to the heater.

Suitable screw-holes are made in the top of the base-board W, W and WFigs. 1 and 2, to facilitate attaching the appliance to the place whererequired.

In operation the. base-board is permanently attached to the beam of thecellar or other place. The cord is attached to the damper or drafts, orboth, of the heater, run through the suitable pulleys, and the oppositeend is secured to the wei ht L. The clock is wound and placed back %rstthrough or into the opening in the upper part of the base, so

that, the bell having been removed, the bellpost fits into the groove I.The hammer O is raised until it lays upward against the back of theclock with its end directly under the winding-post of the alarmmechanism of the clock. The said winding-post is given a few turns andlet to remain with one of its projections extending down over the end ofthe hammer, thus holding the hammer up. The weight L is then hung uponthe catch K in such manner as to leave some sl ght slack cord after thedamper and drafts are adjusted as desired before operation. When thetime arrives at which the clock-alarm has been previously set, the alarmwinding-post H, Fig. 2, revolves off from the end of the hammer, thusreleasing the same. The hammer then falls, describing the arcillustrated in Fig. 3, and strikes the head J of the spring-catch,driving the catch K back into the baseboard, and the support being gonethe weight L falls, taking up the slack in the cord and drawing the sameuntil the damper and draft are operated as desired.

We are aware that prior to ourinvention or discovery various applianceshave been produced in which an alarm-clock operates to release a weight,and hence do not claim this broadly as our invention; but

What we do claim as our invention, and desire to protect by LettersPatent, is

1. In a time-controlled damper-adjuster, the combination of analarm-clock, detach ably set in a vertical baseboard, with a hammerpivoted at one end to said baseboard, and operating in a vertical arc,having its free end extending under the windingpost of the alarmmechanism of the clock, a spring-catch substantially as set forth, at ornear the bottom of said base-board and directly in line with the aredescribed by the free end of the hammer in falling, a weight having aloop at its top and normally suspended upon said catch and havinattached to it a flexible cord passing througi a pulley or pulleys t0the damper or draft.

2. In a machine of the above description, the combination of abase-board containing a circular opening near its top in which springsare set, a suitable alarm-clock fitting into said opening, a hammer withone end pivoted to the said base-board below said opening in such manneras to bring the other end immediately under the alarm winding-post ofthe clock, a spring at the pivoted end of the said hammer so arran ed asto accelerate the downward force of the hammer, a suitable spring-catchcountersunk in said base-board at or near the bottom thereof and in linewith the are described by the free end of the hammer in descending, aweight with a loop at its top, a flexible cord attached to said Weightand proceeding over suitable pulleys or ways to the dampers and draftsof the heater.

3. In a machine of the above description, the combination of abase-board, in which there is affixed, removably, a suitable alarmclockhaving an alarm winding-post on the back thereof, with a hammer pivotedat one end. to said base-board, the free end extending under the alarmwinding-post of the clock, a spring-catch affixed to said baseboard inline with the are described by the free end of the hammer substantiallyas set forth for the purpose above described.

4. In a machine of the above description, the combination of abase-board with a suitable alarm-clock having an alarm windingpost onthe back thereof, a means for removably affixing said clock to saidbase-board, a hammer pivoted by one end to said baseboard, the other endextending under the alarm winding-post of the clock, a spring catchaffixed in said base-board, in line with the are described by the freeend of the said hammer, substantially as set forth and for the purposehereinbefore described.

5. In a machine of the above description, the combination of abase-board, with a suitable alarm-clock having an alarm windingpost onthe back thereof, a means for affixing said clock, removably, in saidbase-board, a hammer pivoted at one end to said baseboard, the free endextending under the alarm Winding-post of the alarmclock, a spring-catchaflixed in said base-board, in line with the are described by the freeend of said hammer, a suitable weight normally suspended upon saidcatch, a cord or cords attached to said weight and passing over suitablepulleys or ways to the damper or drafts.

6. In a machine of the above description, the combination of a suitablealarm-clock having an alarm winding-post on the back thereof, removablyaflixed in a base-board, with a hammer pivoted at one end, by means of asuitable bracket, to said base-board, said hammer having a suitablespring to accelerate the motion of the free end thereof, the free end ofsaid hammer extending under the alarm windingpost of the alarm-clock, asuitable springcatch affixed in said baseboard, in line with the arcdescribed by the free end of the hammer, in passing away from the saidclock, said catch normally protruding from the face of said base-boardand'receding into said. board upon pressure, all substantially as setforth and for the purpose hereinbefore set forth.

7. In a time-controlled damper-adjuster, the combination of asuitable.alarm-clock, having an alarm winding-post on the back thereof,with a suitable framework normally containing said clock, a means forremovably affixing said clock in said framework, a hammer pivoted by oneend to said framework in such manner that the free end thereof extendsunder the alarm winding-post of the said clock, a suitable catchdisposed in said framework in line with the are described by the freeend of the hammer in passing from the said alarm Winding-post of theclock, all

substantially as set forth for the uses and purposes herein expressed.

8. In a time-controlled damper-adjuster, the combination of a suitablealarm-clock, having an alarm Winding-post on the back thereof, with asuitable framework normally containing said clock, a means for removablyaflixing said clock in said framework, a hammer pivoted by one end tosaid framework in such manner that the free end thereof eX- tends underthe alarm winding-post of the said clock, a suitable catch disposed insaid framework in line with the arc described by the free end of thehammer in passing from the said alarm winding-post of the clock, aweight normally suspended upon said catch, a cord or cords attached tosaid weight and passing therefrom over suitable pulleys or ways to thedamper or drafts of the heater, all substantially as described and forthe purposes herein expressed.

In testimony whereof we have signed our names to this specification inthe presence of two subscribing witnesses.

WALTER F. CAWTHORNE. HENRY M. LUMMIS. Witnesses:

WM. F. GROVES, WALTER J. F. MALONE.

